Active Directory & Microsoft Exchange / Messaging Systems Engineer

Who We Are

Known for being a Best Place to Work and a People First company, IronArch Technology is an award-winning Service-Disabled Veteran-Owned Small Business (SDVOSB) specializing in providing innovative solutions and world class services to Federal Government clients. 

Our employees have voted us as a 'Best Place to Work' 8 times and we are an INC 5000 recipient for being one of the fastest growing businesses in the United States.

Our Values: People First, Servant Leadership, Deliver and Inspire Excellence, Do the right thing! 

What You’ll Do

This position will support the US Army Corps of Engineers ACE-IT Program. The Active Directory & Microsoft Exchange / Messaging Systems Engineer is responsible for the planning, design, deployment, configuration, and maintenance of enterprise messaging systems, including Microsoft Exchange (2013/2016/2019), Office 365, and associated directory services. The engineer ensures messaging environments are highly available, secure, and optimized for performance across multi-domain, enterprise-scale infrastructures. This role involves close coordination with IT teams to support directory services, email systems, and messaging infrastructure for geographically dispersed users. 

Key Responsibilities: 

• Provide expert-level operational and engineering support for Microsoft Exchange On-Prem & Exchange Online environments, including clustered and high-availability configurations
• Design and implement upgrades, migrations, and new deployments of Exchange and related services 
• Monitor the health and performance of messaging and directory systems using native and third-party tools
• Manage and maintain Active Directory, including DNS, Group Policies, Trusts, Replication, and Forest/Domain health across multiple sites
• Perform scripting and automation using PowerShell for Exchange, Active Directory, and related systems
• Providing day to day support of email related issues (message traces, creation mailboxes, DLLs, Dynamic DLLs, etc.)
• Management and support of SPF, DKIM & DMARC configurations
• Management and support of large Public Folder deployment
• Implement and maintain backup, recovery, and disaster recovery strategies for messaging and directory systems 
• Support email security infrastructure, such as anti-spam gateways (e.g., Cisco IronPort)
• Create, update, and maintain technical documentation including configuration baselines, process diagrams, and runbooks
• Assist in planning and executing migrations to newer platforms (e.g., Exchange 2019 or Microsoft 365 Exchange Online) 
• Collaborate with cross-functional IT teams to ensure system integrations, security compliance, and service continuity

• Bachelor’s degree in Computer Science, Information Technology, or a related field
• Minimum of 6–8 years of experience with Microsoft Exchange (2013/2016/2019) and Office 365 environments
• Proven experience with Active Directory architecture, DNS, DHCP, Group Policy, and replication in multi-site environments
• Strong experience using PowerShell for administration, automation, and reporting
• In-depth knowledge of Windows Server 2016, 2019, and/or 2022 environments
• Experience planning and executing complex upgrades or migrations in enterprise messaging systems
• Familiarity with monitoring tools, mail routing, clustering, high-availability configurations, and load balancing
• Ability to obtain and maintain a federal government security clearance & DoD IAT 8570 certification (e.g. CompTIA Security+)

Preferred Qualifications: 

• Relevant Microsoft certifications (e.g., Exchange Server, Azure, Intune, Microsoft 365 Certified: Messaging Administrator Associate)
• Experience with hybrid Exchange/Office 365 deployments
• Familiarity with Cisco IronPort or similar email gateway technologies
• Prior experience supporting federal government or large enterprise IT environments

Why IronArch Technology?

• Awarded Best Place to Work 8 times!
• Competitive compensation and market-leading bonus opportunities
• Medical, dental and vision benefits where a significant portion of the premium is subsidized by IronArch. For qualifying high deductible health plans, IronArch also contributes towards a Health Reimbursement Account to cover eligible medical expenses
• Company-provided healthcare concierge assistance to help explain your coverage in plain language; help you find, choose, and schedule quality care; and address billing, benefit, or claims concerns, potentially saving hours of your time
• 401(k) retirement plan where the company contributes dollar for dollar up to 3 percent, and 50 cents on the dollar for the 4th and 5th percent with immediate entry and immediate vesting
• 20 days of PTO accumulated per calendar year
• 11 paid holidays
• Bereavement, jury duty, parental (maternity/paternity/adoption), and military leaves
• Sabbatical programs
• Company-paid short- and long-term disability
• Company-paid life insurance
• Voluntary life, accidental and indemnity income replacement benefits
• Professional development reimbursement
• Health club reimbursement
• Matching donation program and annual philanthropic activities 
• Pet insurance
• And more!

Apply today to learn why IronArch Technology has been recognized as “Best Place to Work” for 8 years!

IronArch Technology is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law.

In alignment with applicable state and local pay transparency laws, IronArch includes a salary range in our job descriptions to support equity and transparency in our hiring process. The compensation range provided reflects what we reasonably expect to offer for this role, with the final offer determined by a variety of factors including skills, experience, and scope of responsibilities.